I've got three people in mind for Darius. And a fourth that he might settle for if the other three end up going to other people.

I actually gave it quite a bit of thought, taking likes, dislikes, personality, fear, and backstory into careful consideration and looking for similarities.

It also probably helps that I have a set of unwritten likes/dislikes for Darius in my head, which I left out because I either didn't think of them at the time or didn't want to make the list too long.